spinoso_time::tzrs

Struct Offset

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pub struct Offset { /* private fields */ }
Expand description

Represents the number of seconds offset from UTC.

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impl Offset

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pub fn utc() -> Self

Generate a UTC based offset.

§Examples
let offset = Offset::utc();
assert!(offset.is_utc());

let time = Time::new(2022, 7, 29, 12, 36, 0, 0, offset)?;
assert!(time.is_utc());
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pub fn local() -> Self

Generate an offset based on the detected local time zone of the system.

Detection is done by tzdb::local_tz, and if it fails will return a GMT timezone.

The system timezone is detected on the first call to this function and will be constant for the life of the program.

§Examples
let offset = Offset::local();
assert!(!offset.is_utc());

let time = Time::new(2022, 7, 29, 12, 36, 0, 0, offset)?;
assert!(!time.is_utc());
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pub fn fixed(offset: i32) -> Result<Self, TimeError>

Generate an offset with a number of seconds from UTC.

§Examples
let offset = Offset::fixed(6600)?; // +0150
assert!(!offset.is_utc());

let time = Time::new(2022, 7, 29, 12, 36, 0, 0, offset)?;
assert!(!time.is_utc());

The offset must be in range:

let offset = Offset::fixed(500_000); // +0150
assert!(offset.is_err());
§Errors

Return a TimeError::TzOutOfRangeError when outside of range of acceptable offset of MIN_OFFSET_SECONDS to MAX_OFFSET_SECONDS.

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pub fn is_utc(&self) -> bool

Returns whether this offset is UTC.

§Examples
let offset = Offset::utc();
assert!(offset.is_utc());

let offset = Offset::fixed(6600)?; // +0150
assert!(!offset.is_utc());

Trait Implementations§

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impl Clone for Offset

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fn clone(&self) -> Offset

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Offset

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl From<TimeZoneRef<'static>> for Offset

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fn from(tz: TimeZoneRef<'static>) -> Self

Converts to this type from the input type.
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impl PartialEq for Offset

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fn eq(&self, other: &Offset) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl TryFrom<&[u8]> for Offset

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type Error = TimeError

The type returned in the event of a conversion error.
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fn try_from(input: &[u8]) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<&str> for Offset

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fn try_from(input: &str) -> Result<Self, Self::Error>

Construct a Offset based on the accepted MRI values.

Accepts:

  • [+/-]HH[:]MM
  • A-I representing +01:00 to +09:00.
  • K-M representing +10:00 to +12:00.
  • N-Y representing -01:00 to -12:00.
  • Z representing UTC/Zulu time (0 offset).
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type Error = TimeError

The type returned in the event of a conversion error.
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impl TryFrom<String> for Offset

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type Error = TimeError

The type returned in the event of a conversion error.
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fn try_from(input: String) -> Result<Self, Self::Error>

Performs the conversion.
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impl TryFrom<i32> for Offset

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fn try_from(seconds: i32) -> Result<Self, Self::Error>

Construct a Offset with the offset in seconds from UTC.

See Offset::fixed.

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type Error = TimeError

The type returned in the event of a conversion error.
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impl Copy for Offset

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impl Eq for Offset

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impl StructuralPartialEq for Offset

Auto Trait Implementations§

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impl Freeze for Offset

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impl RefUnwindSafe for Offset

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impl Send for Offset

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impl Sync for Offset

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impl Unpin for Offset

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impl UnwindSafe for Offset

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.